2026-07-25 12:51.19: New job: Build using linux-s390x in
                                []
2026-07-25 12:51.19: Will push staging image to ocurrent/opam-staging:ubuntu-25.10-ocaml-5.2-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
USER root
RUN apt-get -y update
RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
USER opam
RUN opam switch create 5.2 --packages=ocaml-base-compiler.5.2.1
RUN opam pin add -k version ocaml-base-compiler 5.2.1
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-07-25 12:51.19: Using cache hint "5.2.1-s390x-ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a"
2026-07-25 12:51.19: Waiting for resource in pool OCluster
2026-07-26 11:11.31: Waiting for worker…
2026-07-26 14:44.51: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
WARNING: experimental flag squash is removed with BuildKit. You should squash inside build using a multi-stage Dockerfile for efficiency.
#0 building with "default" instance using docker driver

#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 663B done
#1 DONE 0.1s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.1s

#3 docker-image://docker.io/docker/dockerfile:1@sha256:87999aa3d42bdc6bea60565083ee17e86d1f3339802f543c0d03998580f9cb89
#3 CACHED

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
#4 DONE 0.0s

#5 [internal] load .dockerignore
#5 transferring context: 2B done
#5 DONE 0.1s

#6 [1/8] FROM docker.io/ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
#6 CACHED

#7 [internal] load build context
#7 transferring context: 663B done
#7 DONE 0.1s

#8 [2/8] RUN apt-get -y update
#8 0.609 Hit:1 http://ports.ubuntu.com/ubuntu-ports questing InRelease
#8 0.697 Hit:2 http://ports.ubuntu.com/ubuntu-ports questing-updates InRelease
#8 0.819 Hit:3 http://ports.ubuntu.com/ubuntu-ports questing-backports InRelease
#8 1.023 Hit:4 http://ports.ubuntu.com/ubuntu-ports questing-security InRelease
#8 1.081 Reading package lists...
#8 DONE 1.8s

#9 [3/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#9 0.347 Reading package lists...
#9 1.041 Building dependency tree...
#9 1.122 Reading state information...
#9 1.159 Calculating upgrade...
#9 1.302 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#9 DONE 1.3s

#10 [4/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#10 0.317 Reading package lists...
#10 0.977 Building dependency tree...
#10 1.055 Reading state information...
#10 1.076 Solving dependencies...
#10 1.204 The following NEW packages will be installed:
#10 1.204   libzstd-dev
#10 1.490 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
#10 1.490 Need to get 415 kB of archives.
#10 1.490 After this operation, 1438 kB of additional disk space will be used.
#10 1.490 Get:1 http://ports.ubuntu.com/ubuntu-ports questing/main s390x libzstd-dev s390x 1.5.7+dfsg-1build2 [415 kB]
#10 3.127 Fetched 415 kB in 1s (469 kB/s)
#10 3.176 Selecting previously unselected package libzstd-dev:s390x.
#10 3.176 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 18427 files and directories currently installed.)
#10 3.303 Preparing to unpack .../libzstd-dev_1.5.7+dfsg-1build2_s390x.deb ...
#10 3.329 Unpacking libzstd-dev:s390x (1.5.7+dfsg-1build2) ...
#10 3.403 Setting up libzstd-dev:s390x (1.5.7+dfsg-1build2) ...
#10 DONE 3.6s

#11 [5/8] RUN opam switch create 5.2 --packages=ocaml-base-compiler.5.2.1
#11 0.941 
#11 0.941 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 0.941 Switch invariant: ["ocaml-base-compiler" {= "5.2.1"}]
#11 6.530 
#11 6.530 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 7.464 -> installed base-bigarray.base
#11 7.464 -> installed base-threads.base
#11 7.465 -> installed base-unix.base
#11 7.465 -> installed ocaml-options-vanilla.1
#11 7.823 -> retrieved ocaml-config.3  (2 extra sources)
#11 8.364 -> retrieved ocaml-base-compiler.5.2.1  (https://opam.ocaml.org/cache)
#11 167.8 -> installed ocaml-base-compiler.5.2.1
#11 167.8 -> installed ocaml-config.3
#11 167.8 -> installed ocaml.5.2.1
#11 167.8 -> installed base-domains.base
#11 167.8 -> installed base-nnp.base
#11 168.0 Done.
#11 168.0 # Run eval $(opam env --switch=5.2) to update the current shell environment
#11 DONE 172.8s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.2.1
#12 0.743 ocaml-base-compiler is now pinned to version 5.2.1
#12 0.743 
#12 6.724 No package build needed.
#12 6.724 Nothing to do.
#12 6.724 # Run eval $(opam env) to update the current shell environment
#12 DONE 6.8s

#13 [7/8] RUN opam install -y opam-depext
#13 6.666 The following actions will be performed:
#13 6.666   - install opam-depext 1.2.3
#13 6.666 
#13 6.666 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 7.294 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 9.113 -> installed opam-depext.1.2.3
#13 9.126 Done.
#13 9.126 
#13 9.126 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 9.126 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 9.126 # Run eval $(opam env) to update the current shell environment
#13 DONE 10.1s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 0.1s

#15 exporting to image
#15 exporting layers
#15 exporting layers 1.0s done
#15 writing image sha256:7213f7d5f716668d94556301405df1f5a920b7942c209613e15d4ae54832be07 done
#15 DONE 1.1s

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 14)
Pushing "sha256:7213f7d5f716668d94556301405df1f5a920b7942c209613e15d4ae54832be07" to "ocurrent/opam-staging:ubuntu-25.10-ocaml-5.2-s390x" as user "ocurrentbuilder"
Login Succeeded
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Job succeeded
2026-07-26 14:48.35: Job succeeded